Raspberry Pi IoT Status

On each Pi, get:

  • ndnx (just compile locally, doesn't take long)
  • PyNDN2
  • ndn-pi
  • libcec (only needed on HDMI-CEC node)



Application Architecture

See attached image

Full Example

In order to ssh into gateway pi (HDMI-CEC), must be on CS dept network. ssh into CS dept server first or be physically there.

Run the following in order.

Window 1 (Occupancy Node 1)

ssh pi@
nfdc register /home 2
sudo python app/

Window 2 (Occupancy Node 2)

ssh pi@
nfdc register /home 2
sudo python app/

Window 3 (HDMI-CEC Node)

ssh pi@
nfdc register /home 3
python app/

Window 4 (Consumer Node, physically, same node as HDMI-CEC Node)

ssh pi@
# don't start nfd here since already started
python app/

Future Work

Ask Jeff for prioritization

Fix CEC wrapper

CEC TV bindings are currently very inefficient. It uses Pulse Eight's libcec's cec-client. It's also in single command mode, where it does a bunch of setup before sending the command. If there were just 1 cec-client subprocess running in a separate thread, then each command could be sent almost instantaneous. See app/

Enable ethernet faces in NFD

NFD supports ethernet faces and we want to move away from IP dependency. Enable ethernet faces in NFD, cross-compile, and install on pi. Change nfdc register /home 2|3 command to use ethernet face. You might want to back up the current working NFD on the pi (in /usr/local) in case anything goes wrong in the cross-compile/install.

Web interface gateway

Use ndn-js and Node-JS. Display sensor data in an organized fashion and expose control of networked devices remotely. Connect gateway to ndn testbed listen for names /ndn//home/... and translate /home/...

Webcam Node

Leverage NDN-RTC code to capture and publish video as data. Consume this with the HDMI-CEC node and display on the TV.

Integrate bootstrapping into application

app/ and app/ have pseudocode that can be combined with Wentao's key distribution ideas

Updated by Spencer Sutterlin over 6 years ago ยท 14 revisions